Common Rating of Transformer & Full Load Nominal Current at Secondary Side
Common Rating of Transformer
A TRANSFORMER is a static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Standard Transformer Ratings (Not Limited To):
100KVA
|
150KVA
|
200KVA
|
250KVA
|
315KVA
|
400KVA
|
500KVA
|
630KVA
|
800KVA
|
1000KVA
|
1250KVA
|
1500KVA
|
1600KVA
|
2000KVA
|
2500KVA
|
3000KVA
|
 |
| 11/.415KV Transformer/remondas.blogspot.com |
Nominal Full Load Current for 3 Phase Transformer:
The nominal full-load current (In) on the LV side of a 3 phase transformer is given by:
Nominal Full Load Current for 1 Phase Transformer:
The nominal full-load current (In) on the LV side of a 1 phase transformer is given by:
Simplified Equation for Practical Calculation:
A simplified equation for three Phase transformer,
In = Nominal full load current in Amperes
KVA = KVA rating of the Transformer
V = phase-to-phase voltage at no-load
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